Flat field limited far objective lens engineered for precise, quality imaging across photographic and research applications. Features and benefits precision far objective design delivers consistent, sharp images across the field to support detailed observation and imaging. Standard barrel length of 160 mm ensures compatibility with a wide range of optical systems and setups. 20.2 mm RMS standard thread diameter provides straightforward attachment and a secure mechanical fit with existing equipment that uses the RMS standard. Durable construction suited for both field use and laboratory work, offering reliable performance in varied environments. Versatile for professionals and hobbyists who need improved image quality for documentation, publication, or visual content. Why this lens solves problems Reduces the need for frequent reconfiguration thanks to standard dimensions and thread compatibility. Produces uniform image quality across the frame, minimizing postprocessing time to correct edge softness or field curvature. Mechanical reliability and standard mount make integration into existing rigs faster and less error prone. Typical applications Landscape and telephoto photography where distant subjects require a longbarrel objective for stable, resolution capture. Field research and ecological surveys that demand rugged optics and compatibility with common attachment standards. Laboratory imaging and documentation tasks that benefit from a flat field objective to maintain edgetoedge clarity for specimens or large samples. Specifications summary Product type: Far objective lens, flat field design Barrel length: 160 mm Thread diameter: 20.2 mm RMS standard Intended use: Photography, research observation, laboratory imaging This lens offers a practical combination of standard compatibility, precision imaging, and dependable construction for users who need consistent optical performance without complex modifications.